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Risk assessment is a requirement in any machine guarding standard updated within the past decade. If anyone can put a body part into a point of operation, you must determine the risk to which they are exposed. (more…)

Cylinder applications must consider what happens to the application’s safety function with the loss of air pressure.

Pilot Operated Check Valves, otherwise known as PO Checks, are used wherever a high-flow or remotely-controlled checking function is needed to provide cylinders to automatically stop in the event of the loss of electrical power or system air. (more…)

The ROSS Controls DM2® Control Reliable Double Valves act as a pneumatic safety relay and are 3rd party certified to Category 4 performance level E. They meet SRP/CS (Safety Related Parts of the Control System requirements) for relevant ISO, ANSI, and CSA safety standards.

The DM2® valves feature a 3/2 Normally Closed safety pneumatic exhaust function, dual channel, and are internally self-monitored. They include a status indicator to monitor its readiness status and requires a dedicated reset in the event that a fault occurs to unlock the valve and return it to its normal ready-to-run status.

These valves feature excellent response time and flow rates, are available in port sizes ¼” – 1 ½” with NPT or BSP threads, and are available with explosion proof coils and status indicators for industries and environments where electrical ignition safety is a concern.

A counterbalance system in a press helps to compensate for the weight of the slide and upper die during a press cycle. This helps reduce overall energy requirements and allows the main motor to be much smaller a smaller and less expensive motor to be used. Counterbalance pressures are set based upon the slide weight plus the weight of the die you happen to be using. Larger dies requires higher pressures and smaller dies require lower pressures, so depending upon the part you are making, the pressure in the counterbalance system should be adjusted properly to maximize efficiency and improve part quality.

The basic system normally uses a cylinder(s), an accumulator tank, a check valve, a bleed down valve and a manually adjusted regulator, and it is adjusted manually. Manual regulator adjustments are time consuming and not very accurate, so they are rarely done properly. Ross Controls has developed an automatic counterbalance valve system that can make these adjustments for each job running on the press quickly and accurately.

The Ross counterbalance valve contains a complete pneumatic circuit for controlling counterbalance pressures either manually or automatically. This valve circuit is built into one package – saving space, reducing leak points and makes making for easy installation.